... Several formulations were tested for iron-entrapped niosomes with high stability and encapsulation efficiency. A modified ethanol injection method was selected for niosomes preparation.Niosomes formulated with Glycerol monooleate, Polyglyceryl-3 dioleate or Sorbitan monooleate as food-grade surfactants and dodecanol as membrane stabilizer showed iron encapsulation efficiencies in the 72–84% range. ...